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The properties of hot household hygroscopic materials and their potential use for non-medical facemask decontamination

Abstract : The widespread use of facemasks throughout the population is recommended by the WHO to reduce transmission of the SARS-CoV-2 virus. As some regions of the world are facing mask shortages, reuse may be necessary. However, used masks are considered as a potential hazard that may spread and transmit disease if they are not decontaminated correctly and systematically before reuse. As a result, the inappropriate decontamination practices that are commonly witnessed in the general public are challenging management of the epidemic at a large scale. To achieve public acceptance and implementation, decontamination procedures need to be low-cost and simple. We propose the use of hot hygroscopic materials to decontaminate non-medical facemasks in household settings. We report on the inactivation of a viral load on a facial mask exposed to hot hygroscopic materials for 15 minutes. As opposed to recent academic studies whereby decontamination is achieved by maintaining heat and humidity above a given value, a more flexible procedure is proposed here using a slow decaying pattern, which is both effective and easier to implement, suggesting straightforward public deployment and hence reliable implementation by the population.
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https://hal.archives-ouvertes.fr/hal-03373819
Contributor : Marie-Line Andreola Connect in order to contact the contributor
Submitted on : Monday, October 11, 2021 - 4:49:55 PM
Last modification on : Wednesday, November 10, 2021 - 11:36:04 AM

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Marie-Line Andreola, Fréderic Becquart, Wahbi Jomaa, Paul Verhoeven, Gérard Baldacchino, et al.. The properties of hot household hygroscopic materials and their potential use for non-medical facemask decontamination. PLoS ONE, Public Library of Science, 2021, 16 (9), pp.e0255148. ⟨10.1371/journal.pone.0255148⟩. ⟨hal-03373819⟩

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